Certified Orthopaedic Surgery Coder (COSC) exam — Information & Free Practice
US · Examination information
100 free questions · Answer explanations · No signup required
Certified Orthopaedic Surgery Coder (COSC) exam
- Provider
- AAPC
- Format
- Proctored multiple-choice examination
- Exam questions
- Total questions: 100; Scored questions: 100; Unscored questions: 0; The total includes the scored and unscored questions.
- Time limit
- 4 hours
- Passing score
- 70% or higher
Examination outline
Orthopaedic surgery coding competency
- Medical terminology, anatomy, and physiology
- ICD-10-CM diagnosis coding
- Evaluation and management coding
- CPT coding of orthopaedic procedures
- HCPCS Level II coding
- CPT and HCPCS modifiers
- Healthcare regulations and coding guidelines
Examination sources
- AAPC COSC examination
Breakdown of the 100-question COSC exam, scope statement
- AAPC COSC study guide introduction
PDF p. 6, printed p. 2, COSC Introduction, left column
- AAPC COSC study guide introduction
PDF p. 6, printed p. 2, payer rule constraint
- AAPC COSC study guide shop
COSC Certification Study Guide
- AAPC COSC study guide introduction
PDF p. 5, printed p. 1, CPT Coding, code selection and sequencing
- AAPC COSC study guide introduction
PDF p. 5, printed p. 1, ICD-10-CM, CPT, and E/M linkage
- AAPC COSC study guide introduction
PDF p. 5, printed p. 1, E/M and modifiers
- AAPC COSC examination
What to expect on exam day
- AAPC COSC examination
Exam format
- AAPC COSC examination
Passing grades
- AAPC COSC examination
Two ways to take the exam
- AAPC COSC examination
Requirements
Related license preparation
This examination may be required or accepted as an alternative, depending on the license and application pathway.